EP3656033A1 - Stromrichter-anordnung zur anbindung von windenergieanlagen an ein energieversorgungsnetz - Google Patents
Stromrichter-anordnung zur anbindung von windenergieanlagen an ein energieversorgungsnetzInfo
- Publication number
- EP3656033A1 EP3656033A1 EP17777170.6A EP17777170A EP3656033A1 EP 3656033 A1 EP3656033 A1 EP 3656033A1 EP 17777170 A EP17777170 A EP 17777170A EP 3656033 A1 EP3656033 A1 EP 3656033A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- converter
- power
- series
- phase
- converter arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/36—Arrangements for transfer of electric power between AC networks via high-voltage DC [HVDC] links; Arrangements for transfer of electric power between generators and networks via HVDC links
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel
- H02J3/381—Dispersed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2101/00—Supply or distribution of decentralised, dispersed or local electric power generation
- H02J2101/20—Dispersed power generation using renewable energy sources
- H02J2101/28—Wind energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Definitions
- Converter arrangement for connecting wind turbines to a power supply network
- the invention relates to a power converter arrangement for connection of wind turbines to a power grid according to the preamble of claim 1.
- Converter arrangements that connect, for example, set up in the sea wind turbines in the form of wind turbines on a shore-side DC transmission station to a power grid, are known.
- HVDC platform where HVDC is for high voltage DC transmission.
- the transformers upstream of the converter arrangement and the chokes are connected downstream.
- the wind turbines each generate a three-phase electrical power at an alternating voltage of 33 kV, for example.
- Several wind turbines are usually interconnected, via transformers located on a collecting platform, which reduce the voltage level to e.g. Lift 155 kV.
- a 155 kV cable is used to connect several bus platforms via a common connection line with the
- the HVDC platform Connected to the HVDC platform.
- the HVDC platform is in turn connected by means of a high voltage cable to the shore-side DC ⁇ power transmission station and connected to the power grid.
- the transmission of the electrical energy from the platform to the shore-side supply network takes place as a DC transmission in the high voltage range.
- the object of the invention is to avoid that many components must be installed multiple times, so as to achieve a cost-efficient converter arrangement.
- the solution provides that transformers and at least two power converters are present, wherein the transformers have primary windings and secondary windings, and wherein the at least one connection string is connected to the primary windings.
- the two converters are connected in series with the same polarity and each phase has a phase module with two converter units each.
- the converter units are connected in the same pole in series and their Ver ⁇ connection points each form a phase connection, which is connected to one of the secondary windings.
- the phase modules of a power converter on the output side each form a common converter DC voltage and the converter DC voltages (due to the Gleichpoligen output side series circuit of the converter) together the output DC voltage of the converter arrangement.
- Power converter is filled with an electrically insulating medium.
- the primary ⁇ windings may also be embodied in the Z-circuit.
- An advantageous embodiment provides that the current ⁇ judge units are designed as rectifier bridges.
- the rectifiers of the rectifier bridges are connected in the form of a B6 bridge.
- All rectifiers have at least one diode or several diodes connected in series in series.
- An alternative embodiment provides that the Stromrich ⁇ ter units are designed as self-commutated power converters with a plurality of sub-modules connected in series.
- the sub-modules are formed as a full or half Forwarding from ⁇ .
- the submodules have IGBTs (Insulated Gate Bipolar Transistor) as semiconductor switches.
- IGBTs Insulated Gate Bipolar Transistor
- the series connection of the power converter (to form a bipole or a bipolar output DC voltage) to an electrical ground, ie at one of the connection points (at a corresponding connection ⁇ point), the series circuit of the power converter is grounded.
- the collection platforms are eliminated and the wind turbines are connected directly to the (HVDC) platform.
- 1 is a platform and several wind turbines in the form of wind turbines in a body of water
- FIG. 5 shows a power converter unit designed as a multiphase modular multistage converter with a plurality of submodules connected in series
- FIG. 5 shows a power converter unit designed as a multiphase modular multistage converter with a plurality of submodules connected in series
- Fig. 6 formed as a full bridge sub-modules
- Fig. 7 formed as a half-bridge sub-modules.
- Fig. 1 shows a platform P (HVDC platform) and several wind turbines W (Wind Turbine Generator) in the form of
- Wind turbines that are located in a body of water S (here in the sea).
- transformers Fig. 2 s.: Tl, T2, T3, T4
- T a power converter assembly A and two inductors L, connected in this order with each other, the (quasi in
- the wind turbines W each generate a three-phase alternating current (a three-phase electric power) at an AC voltage of at least 66 kV.
- a plurality of wind turbines W are directly connected to one another and connected to the transformers T via a common connection string AS.
- the connection to a shore-side power supply network via an electrical conductor K in the form of a high-voltage cable, which is platform-connected to the two located on the platform P chokes L is connected.
- the conductor K is connected outside the water S onshore (onshore) with an electrical device E, which may be, for example, a DC transmission station or a power converter.
- the transmission of the electrical energy takes place from the platform P to the land-side supply network as a DC transmission in the high voltage range.
- 2 shows the alternating voltage side with the Transformato ⁇ Ren Tl, T2, T3, T4 and the DC side connected to the inductors L power converter assembly A.
- the transformers Tl, T2, T3, T4 have (in Fig.
- the power converter arrangement A here has four power converters 1, which are connected in the same pole in series and have per phase a phase module 2, each with two power converter units 3.
- the two power converter units 3 are connected in the same pole in series and their connection points form three phase terminals PI, P2, P3, which are connected to a Sekundärwick ⁇ ment.
- the series circuit of the power converter 1 may form a bipole (a bipolar output DC voltage of the converter arrangement A) having an electrical ground, that is grounded at one of the connection points PI, P2, P3 (that is, at a ent ⁇ speaking connection point) ,
- phase modules 2 of a power converter 1 each form a common converter DC voltage Ul, U2, U3, U4.
- the rectifier DC voltages Ul, U2, U3, U4 add up to the output DC voltage U of the converter arrangement A due to the same-pole series connection.
- Power converters 1 are located in an encapsulated housing G, an encapsulating housing, which is filled with an electrically insulating medium M, which is a liquid, here in particular an oil or an ester, for electrical insulation and cooling of the two power converters 1.
- an electrically insulating medium M which is a liquid, here in particular an oil or an ester, for electrical insulation and cooling of the two power converters 1.
- 3 shows a grid-commutated converter 1 with three phase modules 2, which has converter units 3 with rectifiers (valves) 3a.
- rectifier bridges wave- ended rectifier 3a have at least one diode (general ⁇ my valves) or more same polarity series connected diodes, which are connected here in the form of a B6 bridge circuit.
- the individual or homopolar ge ⁇ series connected diodes of the rectifier 3a topulsbe- limitation and therefore bridged to protect against a voltage increase over each with a Modulabieiter 4 having a ent ⁇ speaking limit voltage.
- the converter DC voltage is denoted here by Ui; Ui stands for one of the rectifier DC voltages Ul, U2, U3, U4.
- Fig. 4 shows the entire power converter arrangement A with the rectifier bridges (B6 bridge circuit) connected
- Figs. 3 and 4 thus show an encapsulated diode rectifier in which the diodes are encapsulated in oil or ester and the insulation is against ground potential.
- Fig. 5 shows an alternative power converter unit of a self-commutated converter 1, which is designed here as a multi-phase modular Mehreasenumrichter, which has a plurality of series-connected sub-modules SM and an inductance I on ⁇ .
- FIG. 6 shows the submodules SM designed as a full bridge. It can be seen that the submodules SM each have semiconductor switches (with at least one semiconductor) and a capacitor C as capacitance.
- FIG. 7 shows the submodules SM formed as a half bridge, which likewise have semiconductor switches IGBT (with at least one semiconductor) and a capacitor C as capacitance.
- the semiconductor device of the semiconductor switch is here in FIGS.
- IGBT Insulated Gate Bipolar Transistor
- RC-IGBT reverse-conducting IGBT
- IGCT Integrated Gate-Commutated Thyristor
- IEGT Insertion Enhanced Gate Transistor
- MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL17777170.6T PL3656033T3 (pl) | 2017-08-30 | 2017-08-30 | Układ przekształtnikowy do przyłączania turbin wiatrowych do sieci zasilania energią elektryczną |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2017/071780 WO2019042539A1 (de) | 2017-08-30 | 2017-08-30 | Stromrichter-anordnung zur anbindung von windenergieanlagen an ein energieversorgungsnetz |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3656033A1 true EP3656033A1 (de) | 2020-05-27 |
| EP3656033B1 EP3656033B1 (de) | 2022-07-27 |
Family
ID=59982327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17777170.6A Revoked EP3656033B1 (de) | 2017-08-30 | 2017-08-30 | Stromrichter-anordnung zur anbindung von windenergieanlagen an ein energieversorgungsnetz |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3656033B1 (de) |
| PL (1) | PL3656033T3 (de) |
| WO (1) | WO2019042539A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO347790B1 (en) * | 2021-03-08 | 2024-03-25 | Deep Wind Offshore As | Offshore Array of High Voltage Turbines |
| DE102023133497A1 (de) * | 2023-11-30 | 2025-06-05 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren und System zum Anschluss von Hochvolt- Wechselstromgeneratoren an eine Hochspannungs-Gleichstrom-Übertragung |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008022617A1 (de) | 2008-05-07 | 2009-11-19 | Siemens Aktiengesellschaft | Windenergiepark mit einer Vielzahl von Windenergieanlagen |
| DK2713468T3 (da) | 2012-09-28 | 2019-11-04 | Ge Energy Power Conversion Technology Ltd | Elektriske energioverførselssystemer |
| WO2014131457A1 (de) * | 2013-02-28 | 2014-09-04 | Siemens Aktiengesellschaft | Umrichterstation mit diodengleichrichter |
| CN105027408B (zh) | 2013-02-28 | 2018-03-27 | 西门子公司 | 具有二极管整流器的变流站 |
| CN103887788B (zh) | 2014-03-25 | 2016-04-13 | 华中科技大学 | 一种多端口直流-直流自耦变压器及其应用 |
| EP3116087B1 (de) | 2015-07-07 | 2019-06-05 | Siemens Gamesa Renewable Energy A/S | Windturbine über einen hochspannungs-gleichstromanschluss mit einer netzbrückensteuerung zur durchführung von strom- und spannungsregelung |
| CN108432107B (zh) | 2015-09-21 | 2020-02-28 | Abb瑞士股份有限公司 | 具有斩波电路的多电平变流器 |
-
2017
- 2017-08-30 EP EP17777170.6A patent/EP3656033B1/de not_active Revoked
- 2017-08-30 WO PCT/EP2017/071780 patent/WO2019042539A1/de not_active Ceased
- 2017-08-30 PL PL17777170.6T patent/PL3656033T3/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019042539A1 (de) | 2019-03-07 |
| EP3656033B1 (de) | 2022-07-27 |
| PL3656033T3 (pl) | 2022-11-28 |
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